Air and Fuel› Intake Manifolds and Components

FMS Performance

Silver Bullet Throttle Body Spacer

$173.75

SKU: 46-36001

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Special Order
Ships in 4–6 weeks
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$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Beginner — under 30 min

Overview

The FMS Performance 46-36001 is a Silver Bullet Throttle Body Spacer designed to enhance engine efficiency and performance. Constructed from T-6061 billet aluminum, it creates a vortex airflow to improve the air and fuel mixture, leading to noticeable gains in horsepower and torque.

Installation is straightforward, requiring only bolting without the need for drilling. It is designed to fit all 2004-2015 Titan models, as well as compatible Infiniti and Nissan models like the Armada, Pathfinder, and QX56 with the 5.6L engine. Some applications are 50-state legal and CARB compliant.
Show original supplier description
The FMS Performance 46-36001, also known as the AFE Silver Bullet Throttle Body Spacer, is engineered to optimize engine performance and efficiency. By increasing airflow and generating a vortex, this spacer enhances the air-fuel mixture, resulting in improved throttle response, noticeable power gains, and better fuel economy. It is constructed from precision-machined T-6061 billet aluminum, ensuring durability and reducing turbulence within the intake manifold. The unique serrated/helix entry design creates the desired airflow turbulence without the whistling often associated with similar products. It is specifically designed to fit a range of Infiniti and Nissan vehicles, including all 2004-2015 Titan models, as well as the 2004-2015 Armada, 2004-2013 QX56, and 2008-2012 Pathfinder, all equipped with the 5.6L engine. The product also boasts CARB compliance with EO number D-550-40 for specific applications, making it 50-state legal. This throttle body spacer is backed by a 2-year limited warranty, providing assurance of its quality and longevity. It is compatible with aFe Intakes, further simplifying integration into existing performance systems.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandFMS Performance
Part Number46-36001
CategoryAir and Fuel
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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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